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Fiberizable glass |
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Certain 2-pyridylamino-3-thiophene carboxylic acid derivatives |
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Self-extinguishing polymers |
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Novel foundry sand binding compositions |
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Ink for the ink jet process |
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Tape stop detecting mechanism |
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Ink ejection head for printer |
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Pump for pumping liquid in a pulse-free flow |
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Multiple electrode system |
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Tear webbing
| Details |
Inventors: Kamper, Hans-Werner;
Assignee: Spanset Inter AG (Oetwil am See, CH)
Primary Examiner: Bell; James J.
Assistant Examiner:
Attorney, Agent or Firm: Spencer, Frank & Schneider
A tear webbing includes two woven straps each having a first length portion and an adjoining second length portion. The woven straps are, along the first length portion, in a parallel, superposed orientation and in a face-to-face engagement with one another and a binding yarn connects the woven straps to one another along the first length portion. The woven straps which are separate from one another along the second length portion are adapted to be exposed, in the second length portion, to pulling forces causing a progressive separation of the woven straps along the first length portion under an irreversible energy absorption. The tear webbing further includes an elastic coating matrix in which the woven straps are at least partially embedded along the first length portion. |
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DETAILED DESCRIPTION What is claimed is: 1. In a tear webbing including two woven straps each having a first length portion and an adjoining second length portion; said woven straps being, along said first length portion, in a parallel, superimposed orientation and in a face-to-face engagement with one another; an irreversible energy absorbing device including a binding yarn connecting said woven straps to one another along said first length portion; said woven straps being separate from one another along said second length portion said woven straps being adapted to be exposed, in said second length portion, to pulling forces causing a progressive separation of the woven straps along said first length portion under an irreversible energy absorption effected by a tearing away of the woven straps from the irreversible energy absorbing device; the improvement wherein said irreversible energy absorbing device comprises an elastic coating matrix; said woven straps being at least partially embedded in said coating matrix along said first length portion to thereby increase the resistance of the irreversible energy absorbing device to pulling forces tearing away the woven straps from the irreversible energy absorbing device. 2. A tear webbing as defined in claim 1, wherein said coating matrix includes an elastically hardened thermoplastic. 3. A tear webbing as defined in claim 2, wherein said thermoplastic comprises polyvinyl chloride. 4. A tear webbing as defined in claim 2, wherein said thermoplastic comprises polyurethane. 5. A tear webbing obtained by a process comprising the following steps: (a) connecting to one another woven straps by a binding yarn in a parallel, superposed, face-to-face engaging orientation along a first length portion thereof; (b) leaving said woven straps unconnected along a second length portion; (c) making a mass of pasty consistency, including a thermoplastic; (d) applying the pasty mass to said woven straps along said first length portion to form a layer thereon; (e) pressing the pasty mass into the woven straps; and (f) hardening the pasty mass to form an elastically hardened coating matrix at least partially surrounding said woven straps to thereby increase the resistance of the irreversible energy absorbing device to pulling forces tearing away the woven straps from the irreversible energy absorbing device
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